Variable Interest Entity (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Variable Interest Entities
Balance	$ 4,798,133	$ 3,111,398
Distributions paid	(136,495)	(106,026)
Deferred income tax impact from changes in equity	(7,874)	(10,235)
Net loss	15,916	(21,131)
Balance	5,042,731	3,136,360
Common Units
Variable Interest Entities
Balance	3,476,295	2,097,404
Distributions paid	(136,405)	(105,945)
Deferred income tax impact from changes in equity	(7,874)	(10,235)
Net loss	12,492	(15,458)
Balance	3,613,507	2,069,150
Non-controlling Interest
Variable Interest Entities
Balance	719,813	261,463
Distributions paid	(90)	(81)
Net loss	3,424	(5,673)
Balance	827,199	314,679
As previously reported
Variable Interest Entities
Balance		3,215,591
Distributions paid		(106,793)
Deferred income tax impact from changes in equity		(10,088)
Net loss		(20,764)
Balance		3,240,300
As previously reported | Common Units
Variable Interest Entities
Balance		2,134,714
Distributions paid		(105,945)
Deferred income tax impact from changes in equity		(10,088)
Net loss		(15,460)
Balance		2,106,605
As previously reported | Non-controlling Interest
Variable Interest Entities
Balance		328,346
Distributions paid		(848)
Net loss		(5,304)
Balance		$ 381,164